#!/usr/bin/env python3

from pprint import pprint
from collections import deque, defaultdict
import itertools
import math
import sys

sys.setrecursionlimit(10 ** 6)
INF = float('inf')


rating = int(input())

if 400 <= rating <= 599:
    ans = 8
elif 600 <= rating <= 799:
    ans = 7
elif 800 <= rating <= 999:
    ans = 6
elif 1000 <= rating <= 1199:
    ans = 5
elif 1200 <= rating <= 1399:
    ans = 4
elif 1400 <= rating <= 1599:
    ans = 3
elif 1600 <= rating <= 1799:
    ans = 2
elif 1800 <= rating <= 1999:
    ans = 1

print(ans) from pprint import pprint from collections import deque, defaultdict import itertools itertools import math math import sys sys sys.setrecursionlimit(10 ** 6) sys.setrecursionlimit sys setrecursionlimit 10 ** 6 10 6 INF = float('inf') INF float('inf') float 'inf' rating = int(input()) rating int(input()) int input() input if 400 <= rating <= 599:
    ans = 8
elif 600 <= rating <= 799:
    ans = 7
elif 800 <= rating <= 999:
    ans = 6
elif 1000 <= rating <= 1199:
    ans = 5
elif 1200 <= rating <= 1399:
    ans = 4
elif 1400 <= rating <= 1599:
    ans = 3
elif 1600 <= rating <= 1799:
    ans = 2
elif 1800 <= rating <= 1999:
    ans = 1 400 <= rating <= 599 400 <= rating 400 rating 599 ans = 8 ans 8 elif 600 <= rating <= 799:
    ans = 7 600 <= rating <= 799 600 <= rating 600 rating 799 ans = 7 ans 7 elif 800 <= rating <= 999:
    ans = 6 800 <= rating <= 999 800 <= rating 800 rating 999 ans = 6 ans 6 elif 1000 <= rating <= 1199:
    ans = 5 1000 <= rating <= 1199 1000 <= rating 1000 rating 1199 ans = 5 ans 5 elif 1200 <= rating <= 1399:
    ans = 4 1200 <= rating <= 1399 1200 <= rating 1200 rating 1399 ans = 4 ans 4 elif 1400 <= rating <= 1599:
    ans = 3 1400 <= rating <= 1599 1400 <= rating 1400 rating 1599 ans = 3 ans 3 elif 1600 <= rating <= 1799:
    ans = 2 1600 <= rating <= 1799 1600 <= rating 1600 rating 1799 ans = 2 ans 2 elif 1800 <= rating <= 1999:
    ans = 1 1800 <= rating <= 1999 1800 <= rating 1800 rating 1999 ans = 1 ans 1 print(ans) print ans ans = 7 7 ans ans = 6 6 ans INF = float('inf') float('inf') INF ans = 1 1 ans ans = 8 8 ans ans = 4 4 ans ans = 3 3 ans ans = 2 2 ans ans = 5 5 ans rating = int(input()) int(input()) rating
#!/usr/bin/env python3

from pprint import pprint
from collections import deque, defaultdict
import itertools
import math
import sys

sys.setrecursionlimit(10 ** 6)
INF = float('inf')


rating = int(input())

if 400 <= rating <= 599:
    ans = 8
elif 600 <= rating <= 799:
    ans = 7
elif 800 <= rating <= 999:
    ans = 6
elif 1000 <= rating <= 1199:
    ans = 5
elif 1200 <= rating <= 1399:
    ans = 4
elif 1400 <= rating <= 1599:
    ans = 3
elif 1600 <= rating <= 1799:
    ans = 2
elif 1800 <= rating <= 1999:
    ans = 1

print(ans)
